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--- docker_advanced_install_swarm_intro [2020/03/09 11:00] – andonovj
+++ docker_advanced_install_swarm_intro [2020/03/09 12:18] (current) – [Create service] andonovj
@@ Line 18: / Line 18: @@
   * 2 Workers
+====Automatic====
+You can see the automatic creation in the Vagrant section: [[vagrant_docker_install|Multiple Servers Configuration with Vagrant]]
-You can see the creation in the Vagrant section: [[vagrant_docker_install|Multiple Servers Configuration with Vagrant]]
+After the setup is done, please be sure that workers, have joined, we can create the service as follows:
+====Manual====
+The creation of the VMs and installation of docker-ce will not be discussed as it has been done in at least 10 other sections.
+So let's check how to setup manager and 2 workers:
-After the setup is done, please be sure that workers, have joined, we can create the service as follows:
+===Initiation===
+The initiation of the Swarm is done from one of the managers as follow:
+<Code:none|Init the Swarm>
+docker swarm init --listen-addr 10.100.199.200:2377 --advertise-addr 10.100.199.200:2377
+</Code>
+That command will initialize a swarm with 1 manager who will listen on IP: 10.100.199.200:2377 for docker swarm related activities (advertise-addr) and income traffic (listen-addr)
+===Addition===
+To join a swarm a server must have the swarm's token. The token can be taken as follows:
+<Code:none|Get Join Token for Manager & Worker>
+[root@mgr1 ~]# docker swarm join-token manager
+To add a manager to this swarm, run the following command:
+    docker swarm join --token SWMTKN-1-4mqe4htimsl9wrlzstzx6c18qmibjfjuuihdp3o91pnmssbvml-69b13glzhdgfzh58hbg7jwn69 10.100.199.200:2377
+[root@mgr1 ~]# docker swarm join-token worker
+To add a worker to this swarm, run the following command:
+    docker swarm join --token SWMTKN-1-4mqe4htimsl9wrlzstzx6c18qmibjfjuuihdp3o91pnmssbvml-1h1yrqixgrme7aypq6c4m0npj 10.100.199.200:2377
+[root@mgr1 ~]#
+</Code>
+Now, it is good idea to ALWAYS add the advertise and listener address to the server:
+Manually, workers and manager can be joined to the swarm as follows:
+<Code:none|Add a node to the Swarm>
+docker swarm join --token SWMTKN-1-4mqe4htimsl9wrlzstzx6c18qmibjfjuuihdp3o91pnmssbvml-1h1yrqixgrme7aypq6c4m0npj \
+manager_advertise_ip:2377 \
+--advertise-addr worker_advert_ip_addr:2377 \
+--listener-addr worker_listen_ip_addr:2377
+</Code>
+Insert the correct token depending on, if you are adding worker or a manager. The above is for worker.
 =====Create service=====
@@ Line 28: / Line 70: @@
 <sxh bash>
-[root@mgr1 ~]# docker service create --name httpDemoService --replicas 3 andonovj/httpserverdemo
+[root@mgr1 ~]# docker service create --name httpDemoService --replicas 3 -p 80:1234 andonovj/httpserverdemo
-q8s7iiv4rwu7pymf2qnelglgx
+nz82mserbonjcoccp7iir7hfn
 overall progress: 3 out of 3 tasks
 /3: running   [==================================================>]
@@ Line 48: / Line 90: @@
 sdcosdbt1f94rrvbr8m9ng30s     worker02            Ready               Active                                  19.03.7
 [root@mgr1 ~]#
+[root@mgr1 ~]# docker service ps httpDemoService
+ID                  NAME                IMAGE                            NODE                DESIRED STATE       CURRENT STATE            ERROR               PORTS
+avcanadogs3e        httpDemoService.1   andonovj/httpserverdemo:latest   mgr1                Running             Running 27 seconds ago
+pgfba2xdg0q        httpDemoService.2   andonovj/httpserverdemo:latest   worker01            Running             Running 9 seconds ago
+me2174rye7nu        httpDemoService.3   andonovj/httpserverdemo:latest   worker02            Running             Running 8 seconds ago
+[root@mgr1 ~]#
 </sxh>